CN1880307A - 2,4-dichlor phenoxyacetic amide pyrimidine derivative and its preparation method and agricultural composition - Google Patents
2,4-dichlor phenoxyacetic amide pyrimidine derivative and its preparation method and agricultural composition Download PDFInfo
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Abstract
This invention provides a 2,4-dichlorophenoxy-acetamide pyrimidine derivant indicated by formula(I), method for making same and herbicide composition, wherein: X, Y represent respectively C1-3 alkoxy group, C1-3 alkyl group, hydroxyl group or halogen, with the prerequisite that X,Y can not be C1-3 alkoxy group at the same time.This derivant is produced by reaction of 2,4-dichlorophenoxyacetyl chloride and 4,6-disubstituted-2-amino-pyrimidine under the aprotic solvent reflux temperature. The compound indicated by formula(I) has high efficient selecting herbicide activity, which mainly suppresses the growth of broad-leaved weed while safe for gramineous plants.
Description
Invention field:
The present invention relates to 2,4 dichloro benzene acetamide oxide pyrimidine derivatives and preparation method thereof and herbicidal composition that a class has efficient weeding activity.
Background of invention:
The mankind enter 21 century, need to use ultra-high efficiency, low toxicity, environment amenable novel agrochemical.Though sulfonylurea herbicide has ultra-high efficiency, low toxicity, to advantages such as people and mammalian safe because its difficult degradation in soil, shadow noon succession crop growth and already present serious resistance problem, so it is used and has been subjected to very big restriction.
For addressing the above problem, have now found that its weeding activity of 2,4 dichloro benzene acetamide oxide pyrimidine derivatives is suitable with sulfonylurea herbicide, but selectivity obviously is better than the latter, and easily degraded in soil.
Summary of the invention:
It is efficient to the purpose of this invention is to provide a class, low toxicity, and to the people, new herbicides or its lead compound of poultry and environmental safety.
Above-mentioned purpose can reach with the 2,4 dichloro benzene acetamide oxide pyrimidine derivatives of general formula for (I) expression:
In the formula:
X, Y represent C independently of one another
1～3Alkoxyl group, C
1～3Alkyl, hydroxyl or halogen, prerequisite are that X and Y are not C simultaneously
1～3Alkoxyl group.
2,4 dichloro benzene acetamide oxide pyrimidine derivatives with general formula (I) expression can be prepared with the following method:
Use the 2,4 dichloro benzene oxygen Acetyl Chloride 98Min. and 4 of general formula (II) expression under the reflux temperature of aprotic solvent, 6-two substituent-2-amido pyrimidines reacted in the presence of acid binding agent 1～5 hour, obtained the compound of general formula (I) expression.
X in the formula, Y is identical with above-mentioned definition.
General formula is 2 of (I) expression, the 4-dichlor phenoxyacetic amide pyrimidine derivative, carry out finding after weeding activity is measured through southern agricultural chemicals initiative center drug effect portion of country and Institute of Plant Protection, academy of agricultural sciences, Shanghai City, this compounds can be prevented and kill off most of broadleaf weedss such as sweet wine intestines, lamb's-quarters, Amaranthus retroflexus effectively, and to various crop safety such as corn, wheat, paddy rice.Compare with the dry land weeding activity, this compound is higher at the rice terrace application of active, and the growth of gramineous weeds is also had certain restraining effect, so the effective active components of useful as herbicides.
Specific implementation method:
2,4 dichloro benzene acetamide oxide pyrimidine derivatives with efficient weeding activity of the present invention is represented with following general formula (I):
In the formula:
X, Y represent C independently of one another in the formula
1～3Alkoxyl group, C
1～3Alkyl, hydroxyl or halogen, prerequisite are that X and Y are not C simultaneously
1～3Alkoxyl group.
Above-mentioned C
1～3The example of alkoxyl group comprises methoxyl group, oxyethyl group, propoxy-and isopropoxy, and preferably methoxyl group and oxyethyl group are more preferably methoxyl group.
Above-mentioned C
1～3The example of alkyl comprises methyl, ethyl, propyl group and sec.-propyl, and preferably methyl and ethyl are more preferably methyl.
Described halogen comprises fluorine, chlorine, bromine and iodine, and preferably chlorine and bromine are more preferably chlorine.
The example of 2,4 dichloro benzene acetamide oxide pyrimidine derivatives of the present invention is:
N-(4,6-dimethyl pyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide,
N-(4-methyl-6-methoxy pyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide,
N-(4-methyl-6-oxyethyl group pyrimidine-2-base)-2,4 dichloro benzene acetamide oxide,
N-(4-chloro-6-methoxy pyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide,
N-(4-chloro-6-oxyethyl group pyrimidine-2-base)-2,4 dichloro benzene acetamide oxide,
N-(4-hydroxyl-6-methylpyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide,
N-(4-chloro-6-propoxy-pyrimidine-2-base)-2,4 dichloro benzene acetamide oxide,
N-(4-chloro-6-methylpyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide and
N-(4,6-dichloro pyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide.
2,4 dichloro benzene acetamide oxide pyrimidine derivatives of the present invention can be prepared with the following method:
Use the 2,4 dichloro benzene oxygen Acetyl Chloride 98Min. and 4 of general formula (II) expression under the reflux temperature of aprotic solvent, 6-two substituent-2-amido pyrimidines reacted in the presence of acid binding agent 1～5 hour, obtained the compound of general formula (I) expression.
In the formula:
X, Y represent C independently of one another in the formula
1～3Alkoxyl group, C
1～3Alkyl, hydroxyl or halogen, prerequisite are that X and Y are not C simultaneously
1～3Alkoxyl group.
Used formula (II) compound and 4 in this step, the mol ratio of 6-two substituent-2-amido pyrimidines is 3: 1～1: 3, preferred mol ratio is 1: 1.
General formula is with 2,4 dichlorophenoxyacetic acid and sulfur oxychloride prepared in reaction for the preparation method of the compound of (II).2,4 dichlorophenoxyacetic acid is industrial goods (two industrial goods of Wuhan Han Nan chemical industry).Used aprotic polar solvent is trichloromethane, acetonitrile, N in this step, dinethylformamide (DMF) etc., and preferred solvent is a trichloromethane.
Be reflected in this step under the reflux temperature in the used aprotic polar solvent and carry out, the reaction times is 1～5 hour, is preferably 2 hours.Precipitation after reaction is finished, suction filtration, washing, drying.
Used acid binding agent is an organic amine in this step, preferably aliphatic amide, most preferably triethylamine.
Target compound of the present invention (I) adopts national southern agricultural chemicals initiative center (Shanghai) drug effect portion to give birth to the accurate schedule of operation of mark and measures.Measurement result shows that general formula is that the compound of (I) has higher weeding activity, the preventive effect of broadleaf weeds is reached 90%, to grass safety.
Embodiment:
Embodiment 1 preparation N-(4,6-dimethyl pyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide (Ia)
1) preparation 2,4 dichloro benzene oxygen Acetyl Chloride 98Min.
With 0.001mol 2, the 4-dichlorphenoxyacetic acid places the 50mL round-bottomed flask, makes solvent with 5mL toluene, drips the sulfur oxychloride of 0.004mol under the room temperature, dropwise, reflux 1～3 hour is removed toluene and excessive sulfur oxychloride, underpressure distillation down shallow dark brown or colourless liquid, be 2,4-Dichlorophenoxy Acetyl Chloride 98Min., productive rate 85%, b.p.134～136 ℃/4mmHg.
2) preparation N-(4,6-dimethyl pyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide
With 4 of 0.001mol, 6-dimethyl-2-aminopyrimidine is dissolved in the 10mL trichloromethane, and with the 2,4 dichloro benzene oxygen Acetyl Chloride 98Min. of above-mentioned steps gained, the 0.001mol triethylamine slowly splashes into system under the reflux, refluxes 2～3 hours, has a large amount of solids to separate out.Suction filtration, oven dry with the dilute hydrochloric acid washed product of 0.1mol/L, gets the white needles solid.Yield 75%, m.p. (℃) 152～156.
Ultimate analysis: measured value C%51.65 H%4.11 N%12.75
Calculated value C%51.55 H%4.02 N%12.88
IR (KBr compressing tablet, cm
-1): 3166,2955 (N-H), 1710 (C=O)
1HNMR(δ，ppm，CDCl
3)：2.337(s，6H，CH
3)，4.845(s，2H，CH
2)，5.174(s，1H，Py-5-H)，7.032～7.587(m，3H，Ph-H)，8.841(s，1H，NH)。
Embodiment 2: preparation N-(4-methyl-6-methoxy pyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide (Ib)
4-methyl-6-methoxyl group-2-aminopyrimidine of 0.001mol is dissolved in the 10mL trichloromethane, and with 0.001mol 2,4 dichloro benzene oxygen Acetyl Chloride 98Min., the 0.001mol triethylamine slowly splashes into system under the reflux, refluxes 2～3 hours, has a large amount of solids to separate out.Suction filtration, oven dry with the dilute hydrochloric acid washed product of 0.1mol/L, gets white solid.Yield 68.5%, m.p. (℃) 120～122.
Ultimate analysis: measured value C%49.34 H%3.98 N%12.38
Calculated value C%49.14 H%3.83 N%12.28
IR (KBr compressing tablet, cm
-1): 3170,2985 (N-H), 1698 (C=O)
1HNMR (δ, ppm, CDCl
3): 2.451 (s, 3H, CH
3), 4.015 (s, 3H, OCH
3), 4.819 (s, 2H, CH
2), 6.346 (s, 1H, Py-5-H), 6.878～7.358 (m, 3H, Ph-H), 8.851 (s, 1H, NH).
Embodiment 3: preparation N-(4-methyl-6-oxyethyl group pyrimidine-2-base)-2,4 dichloro benzene acetamide oxide (Ic)
4-methyl-6-oxyethyl group-2-aminopyrimidine of 0.001mol is dissolved in the 10mL trichloromethane, and with 0.001mol 2,4 dichloro benzene oxygen Acetyl Chloride 98Min., the 0.001mol triethylamine slowly splashes into system under the reflux, refluxes 2～3 hours, has a large amount of solids to separate out.Suction filtration, oven dry with the dilute hydrochloric acid washed product of 0.1mol/L, gets white solid.Yield 65.5%, m.p. (℃) 148～150.
Ultimate analysis: measured value C% 50.70 H%3.71 N%11.73
Calculated value C% 50.58 H%4.24 N%11.80
IR (KBr compressing tablet, cm
-1): 3172,2992 (N-H), 1690 (C=O)
1HNMR (δ, ppm, CDCl
3): 1.409 (t, 3H, OCH
2CH
3), 2.451 (s, 3H, CH
3), 4.500 (q, 2H, OCH
2CH
3), 4.896 (s, 2H, CH
2), 6.346 (s, 1H, Py-5-H), 6.888～7.359 (m, 3H, Ph-H), 8.831 (s, 1H, NH).
Embodiment 4: preparation N-(4-chloro-6-methoxy pyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide (Id)
4-chloro-6-methoxyl group-2-aminopyrimidine of 0.001mol is dissolved in the 10mL trichloromethane, and with the 2,4 dichloro benzene oxygen Acetyl Chloride 98Min. of 0.001mol, the 0.001mol triethylamine slowly splashes into system under the reflux, refluxes 2～3 hours, has solid to separate out.Suction filtration, oven dry with the dilute hydrochloric acid washed product of 0.1mol/L, gets light yellow solid.Yield 50.5%, m.p. (℃) 209～210.
Ultimate analysis: measured value C%43.15 H%2.90 N%11.75
Calculated value C%43.06 H%2.78 N%11.59
IR (KBr compressing tablet, cm
-1): 3234,3168 (N-H), 1700 (C=O)
1HNMR(δ，ppm，CDCl
3)：4.015(s，3H，CH
3)，4.819(s，2H，CH
2)，6.535(s，1H，Py-5-H)，6.870～7.521(m，3H，Ph-H)，8.850(s，1H，NH)。
Embodiment 5: preparation N-(4-chloro-6-oxyethyl group pyrimidine-2-base)-2,4 dichloro benzene acetamide oxide (Ie)
4-chloro-6-oxyethyl group-2-aminopyrimidine of 0.001mol is dissolved in the 10mL trichloromethane, and with 0.001mol 2,4 dichloro benzene oxygen Acetyl Chloride 98Min., the 0.001mol triethylamine slowly splashes into system under the reflux, refluxes 2～3 hours, has a large amount of solids to separate out.Suction filtration, oven dry with the dilute hydrochloric acid washed product of 0.1mol/L, gets white needle-like crystals.Yield 78.7%, m.p. (℃) 183～184.
Ultimate analysis: measured value C%44.34 H%3.38 N%11.18
Calculated value C%44.65 H%3.21 N%11.16
IR (KBr compressing tablet, cm
-1): 3234,3168 (N-H), 1700 (C=O)
1HNMR (δ, ppm, CDCl
3): 1.419 (t, 3H, OCH
2CH
3), 4.507 (q, 2H, OCH
2CH
3), 4.819 (s, 2H, CH
2), 6.535 (s, 1H, Py-5-H), 6.874～7.523 (m, 3H, Ph-H), 8.851 (s, 1H, NH).
Embodiment 6: preparation N-(4-hydroxyl-6-methylpyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide (If)
4-hydroxyl-6-methyl-2-aminopyrimidine of 0.001mol is dissolved in the 10mL trichloromethane, and with 0.001mol 2,4 dichloro benzene oxygen Acetyl Chloride 98Min., the 0.001mol triethylamine slowly splashes into system under the reflux, refluxes 2～3 hours, has a large amount of solids to separate out.Suction filtration, oven dry with the dilute hydrochloric acid washed product of 0.1mol/L, gets the white solid powder.Yield 73.1%, m.p. (℃) 240～242.
Ultimate analysis: measured value C%47.34 H%3.21 N%12.88
Calculated value C%47.58 H%3.38 N%12.81
IR (KBr compressing tablet, cm
-1): 3173,2987 (N-H), 1703 (C=O)
1HNMR (δ, ppm, CDCl
3): 2.441 (s, 3H, CH
3), 4.819 (s, 2H, CH
2), 6.441 (s, 1H, Py-5-H), 6.878～7.458 (m, 3H, Ph-H), 8.831 (s, 1H, NH).
Embodiment 7: preparation N-(4-chloro-6-propoxy-pyrimidine-2-base)-2,4 dichloro benzene acetamide oxide (Ig)
4-chloro-6-propoxy--2-aminopyrimidine of 0.001mol is dissolved in the 10mL trichloromethane, and with 0.001mol 2,4 dichloro benzene oxygen Acetyl Chloride 98Min., the 0.001mol triethylamine slowly splashes into system under the reflux, refluxes 2～3 hours, has a large amount of solids to separate out.Suction filtration, oven dry with the dilute hydrochloric acid washed product of 0.1mol/L, gets white crystal.Yield 68.7%, m.p. (℃) 187～189.
Ultimate analysis: measured value C%45.94 H%3.48 N%10.68
Calculated value C%46.12 H%3.61 N%10.76
IR (KBr compressing tablet, cm
-1): 3230,3163 (N-H), 1700 (C=O)
1HNMR(δ，ppm，CDCl
3)：1.219(t，3H，OCH
2CH
2CH
3)，1.433(m，2H，OCH
2CH
2CH
3)，4.447(t，2H，OCH
2CH
2CH
3)，4.819(s，2H，CH
2)，6.538(s，1H，Py-5-H)，6.877～7.525(m，3H，Ph-H)，8.850(s，1H，NH)。
Embodiment 8: preparation N-(4-chloro-6-methylpyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide (Ih)
4-chloro-6-methyl-2-aminopyrimidine of 0.001mol is dissolved in the 10mL trichloromethane, and with 0.001mol 2,4 dichloro benzene oxygen Acetyl Chloride 98Min., the 0.001mol triethylamine slowly splashes into system under the reflux, refluxes 2～3 hours, has a large amount of solids to separate out.Suction filtration, oven dry with the dilute hydrochloric acid washed product of 0.1mol/L, gets white powder.Yield 45.0%, m.p. (℃) 143～144.
Ultimate analysis: measured value C%44.94 H%2.78 N%12.18
Calculated value C%45.05 H%2.91 N%12.12
IR (KBr compressing tablet, cm
-1): 3179,3108 (N-H), 1713 (C=O)
1HNMR (δ, ppm, CDCl
3): 2.515 (s, 3H, CH
3), 4.817 (s, 2H, CH
2), 6.535 (s, 1H, Py-5-H), 6.875～7.531 (m, 3H, Ph-H), 8.843 (s, 1H, NH).
Embodiment 9: preparation N-(4,6-dichloro pyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide (Ii)
With 4 of 0.001mol, 6-two chloro-2-aminopyrimidines are dissolved in the 10mL trichloromethane, and with 0.001mol 2,4 dichloro benzene oxygen Acetyl Chloride 98Min., the 0.001mol triethylamine slowly splashes into system under the reflux, refluxes 2～3 hours, has a large amount of solids to separate out.Suction filtration, oven dry with the dilute hydrochloric acid washed product of 0.1mol/L, gets white powder.Yield 35.0%, m.p. (℃) 211～214.
Ultimate analysis: measured value C%39.14 H%1.78 N%11.18
Calculated value C%39.27 H%1.92 N%11.45
IR (KBr compressing tablet, cm
-1): 3214,3108 (N-H), 1713 (C=O)
1HNMR(δ，ppm，CDCl
3)：4.817(s，2H，CH
2)，6.812(s，1H，Py-5-H)，6.875～7.531(m，3H，Ph-H)，8.843(s，1H，NH)。
The weeding activity determination experiment
Adopting national southern agricultural chemicals initiative center (Shanghai) drug effect portion to give birth to the accurate schedule of operation of mark measures.
Test materials and content:
Examination material: barnyard grass grass, Chinese sorghum, lady's-grass, three-coloured amaranth, cucumber, rape
Test method: Plating
Test temperature: 25 ℃
Test period: 2005.4.18-2005.4.25
The weeding activity test data of part of compounds sees Table 1.
The general sieve test data of the weeding activity of table 1 part target compound
| Numbering | Content (%) | The barnyard grass grass | Chinese sorghum | Lady's-grass | Three-coloured amaranth | Cucumber | Rape |
| Ia | 90 | 80/90 | 90/90 | 100/100 | 95/90 | 60/80 | 95/90 |
| Ib | 90 | 50/85 | 80/90 | 95/95 | 85/85 | 50/90 | 50/85 |
| Ic | 90 | 10/70 | 60/80 | 85/85 | 75/80 | 30/80 | 45/80 |
| Id | 90 | 20/60 | 70/85 | 90/90 | 70/80 | 40/80 | 45/80 |
| Ie | 90 | 10/40 | 25/70 | 75/80 | 65/75 | 30/75 | 45/75 |
| If | 90 | 10/40 | 10/60 | 80/85 | 60/75 | 35/80 | 45/80 |
| Ig | 90 | 10/40 | 10/60 | 80/85 | 60/75 | 35/80 | 45/80 |
| Ih | 90 | 20/60 | 70/85 | 85/90 | 90/90 | 40/80 | 45/80 |
| Ii | 90 | 30/70 | 75/85 | 90/90 | 70/80 | 40/80 | 45/80 |
Annotate: 80/90 grade is represented the growth inhibition ratio that stem is long and root is long respectively.
Reference:
[1] Xue Sijia, Chen Daijin, Tan Dongyun etc. chemical research and application, 1998,10 (1): 74～78
[2] Su Shaoquan. agricultural chemicals, 2002,41 (11): 1～5
[3] Zhao Xinjun, Zhang Zhengwen, Wang Yangang. chemistry circular, 2003,11:784～788
[4] Mao Deshou, Lin Jun, Liu Fuchu. agricultural chemicals, 2001,40 (4): 6～12,4
[5] Xue Sijia, Duan Liping, Ke Shaoyong etc. structural chemistry, 2004,23 (4): 441～444
[6] Xue Sijia, Duan Liping, Zou Jinshan etc. organic chemistry, 2004,24 (10): 1244～1248
Claims (10)
1. the 2,4 dichloro benzene acetamide oxide pyrimidine derivatives that has efficient weeding activity, it is represented with following general formula (I):
In the formula:
X, Y represent C independently of one another in the formula
1～3Alkoxyl group, C
1～3Alkyl, hydroxyl or halogen, prerequisite are that X and Y are not C simultaneously
1～3Alkoxyl group.
2. 2,4 dichloro benzene acetamide oxide pyrimidine derivatives as claimed in claim 1 is characterized in that X, Y represent C independently of one another in the described formula
1～2Alkoxyl group, C
1～2Alkyl, hydroxyl or halogen.
3. 2,4 dichloro benzene acetamide oxide pyrimidine derivatives as claimed in claim 2 is characterized in that X, Y represent methyl, ethyl, methoxyl group, oxyethyl group, hydroxyl or chlorine independently of one another.
4. 2,4 dichloro benzene acetamide oxide pyrimidine derivatives as claimed in claim 1 is characterized in that it is selected from:
N-(4,6-dimethyl pyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide,
N-(4-methyl-6-methoxy pyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide,
N-(4-methyl-6-oxyethyl group pyrimidine-2-base)-2,4 dichloro benzene acetamide oxide,
N-(4-chloro-6-methoxy pyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide,
N-(4-chloro-6-oxyethyl group pyrimidine-2-base)-2,4 dichloro benzene acetamide oxide,
N-(4-hydroxyl-6-methylpyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide,
N-(4-chloro-6-propoxy-pyrimidine-2-base)-2,4 dichloro benzene acetamide oxide,
N-(4-chloro-6-methylpyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide,
N-(4,6-dichloro pyrimidine-2-yl)-2,4 dichloro benzene acetamide oxide.
5. the preparation method of 2,4 dichloro benzene acetamide oxide pyrimidine derivatives as claimed in claim 1, it comprises:
Use the 2,4 dichloro benzene oxygen Acetyl Chloride 98Min. and 4 of general formula (II) expression under the reflux temperature of aprotic polar solvent, 6-two substituent-2-amido pyrimidines reacted in the presence of acid binding agent 1～5 hour, obtained the compound of general formula (I) expression,
X, Y represent C independently of one another in the formula
1～3Alkoxyl group, C
1～3Alkyl, hydroxyl or halogen, prerequisite are that X and Y are not C simultaneously
1～3Alkoxyl group.
6. preparation method as claimed in claim 5 is characterized in that used aprotic polar solvent is a trichloromethane.
7. preparation method as claimed in claim 5 is characterized in that used acid binding agent is a triethylamine.
8. preparation method as claimed in claim 5 is characterized in that X, Y represent methyl, ethyl, methoxyl group, oxyethyl group, hydroxyl or chlorine independently of one another.
9. herbicidal composition, it comprises acceptable carrier and/or auxiliary agent on the 2,4 dichloro benzene acetamide oxide pyrimidine derivatives of general formula (I) expression of herbicidally effective amount and the agricultural chemicals.
10. herbicidal composition as claimed in claim 9, it is emulsion, aqueous suspension, suspension concentrate, aqueous emulsion or wettable powder.
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| CN101220022B (en) * | 2007-11-23 | 2010-12-08 | 上海师范大学 | 2-(5-chlorophenyl-2-tetrol formamido)ethanamide pyrimidine derivant, preparation and application thereof |
| CN105052968A (en) * | 2015-07-17 | 2015-11-18 | 安徽常泰化工有限公司 | Herbicide mixture and weeding microemulsion special for rhizoma atractylodis |
| CN107691470A (en) * | 2017-11-24 | 2018-02-16 | 浙江永太科技股份有限公司 | Conjugate containing phenoxy flumetsulam and chlorine acyl grass phosphine and the Herbicidal combinations comprising the conjugate |
| CN107711880A (en) * | 2017-11-24 | 2018-02-23 | 浙江永太科技股份有限公司 | Conjugate containing phenoxy flumetsulam and double first amiprophos and the Herbicidal combinations comprising the conjugate |
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| CN1155829A (en) * | 1994-06-28 | 1997-07-30 | Fmc有限公司 | 1-amino-3-(bicyclic heterocyclyl)-6-fluoroalkyluracils |
| EP0823899A1 (en) * | 1995-05-03 | 1998-02-18 | Bayer Ag | Process for preparing substituted aryluracils |
| DE19755926A1 (en) * | 1997-12-17 | 1999-06-24 | Basf Ag | Herbicidal 3- (benzazol-4-yl) pyrimidinedione derivatives |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220022B (en) * | 2007-11-23 | 2010-12-08 | 上海师范大学 | 2-(5-chlorophenyl-2-tetrol formamido)ethanamide pyrimidine derivant, preparation and application thereof |
| CN105052968A (en) * | 2015-07-17 | 2015-11-18 | 安徽常泰化工有限公司 | Herbicide mixture and weeding microemulsion special for rhizoma atractylodis |
| CN107691470A (en) * | 2017-11-24 | 2018-02-16 | 浙江永太科技股份有限公司 | Conjugate containing phenoxy flumetsulam and chlorine acyl grass phosphine and the Herbicidal combinations comprising the conjugate |
| CN107711880A (en) * | 2017-11-24 | 2018-02-23 | 浙江永太科技股份有限公司 | Conjugate containing phenoxy flumetsulam and double first amiprophos and the Herbicidal combinations comprising the conjugate |
| CN107711880B (en) * | 2017-11-24 | 2020-07-03 | 浙江永太科技股份有限公司 | Combination containing fenoxaprop-p-ethyl and diafenthiuron and weeding composition containing combination |
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| CN100398523C (en) | 2008-07-02 |
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